Abstract:Aiming at the embankment landslide on an expansive soil slope foundation in Yunnan, its causes are analyzed from the aspects of topography, landform, fracture distribution, human factors and etc. Combined with the supplementary survey and deep stratum observation, the main sliding surface position is determined. The intensity parameters of slip zone are determined through the laboratory tests and the stability inversion calculation. On the basis of calculating the gliding force, combined with the embankment filling condition, construction condition and landslide mass situation, the comprehensive improvement scheme of unloading + anti-slide pile classification retaining + reinforced roadbed + drainage slope protection is determined. And the good improvement effect is obtained.
